我认为做二级联动比较方便的办法
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
<style type="text/css">
select{width:150px;}
</style>
</head>
<body>
<select id="sel1"><option>请选择...</option></select>
<select id="sel2"></select>
<script type="text/javascript">
var data={
'浙江省':['浙江城市一','浙江城市二','浙江城市三','浙江城市四','浙江城市五'],//如果需要城市代码的,可以这样写{city:'杭州',code:'0571'}
'江西省':['江西城市一','江西城市二','江西城市三','江西城市四','江西城市五']
};
function $(id)
{
return document.getElementById(id);
}
window.onload = function(){
var s1 = $("sel1");
var s2 = $("sel2");
for(var province in data)
{
var opt = new Option(province,'');
s1.options.add(opt);
}
s1.onchange = function(){
clearCombo(s2);
var txt = this.options[this.selectedIndex].text;
if(data[txt])
{
var city = data[txt];
for(var i=0;i<city.length;i++)
{
var opt = new Option(city[i],'');
s2.options.add(opt);
}
}
}
}function clearCombo(cb)
{
while(cb.options.length>0)
cb.options.remove(0);
}
</script>
</body>
</html>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
<style type="text/css">
select{width:150px;}
</style>
</head>
<body>
<select id="sel1"><option>请选择...</option></select>
<select id="sel2"></select>
<script type="text/javascript">
var data={
'浙江省':['浙江城市一','浙江城市二','浙江城市三','浙江城市四','浙江城市五'],//如果需要城市代码的,可以这样写{city:'杭州',code:'0571'}
'江西省':['江西城市一','江西城市二','江西城市三','江西城市四','江西城市五']
};
function $(id)
{
return document.getElementById(id);
}
window.onload = function(){
var s1 = $("sel1");
var s2 = $("sel2");
for(var province in data)
{
var opt = new Option(province,'');
s1.options.add(opt);
}
s1.onchange = function(){
clearCombo(s2);
var txt = this.options[this.selectedIndex].text;
if(data[txt])
{
var city = data[txt];
for(var i=0;i<city.length;i++)
{
var opt = new Option(city[i],'');
s2.options.add(opt);
}
}
}
}function clearCombo(cb)
{
while(cb.options.length>0)
cb.options.remove(0);
}
</script>
</body>
</html>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
<style type="text/css">
select{width:150px;}
</style>
</head>
<body>
<select id="sel1"><option>请选择...</option></select>
<select id="sel2"></select>
<script type="text/javascript">
var data={
'浙江省':['浙江城市一','浙江城市二','浙江城市三','浙江城市四','浙江城市五'],
'江西省':['江西城市一','江西城市二','江西城市三','江西城市四','江西城市五']
};
function $(id)
{
return document.getElementById(id);
}
window.onload = function(){
var s1 = $("sel1");
var s2 = $("sel2");
for(var province in data)
{
var opt = new Option(province,'');
s1.options.add(opt);
}
s1.onchange = function(){
clearCombo(s2);
var txt = this.options[this.selectedIndex].text;
if(data[txt])
{
s2.style.display="";
var city = data[txt];
for(var i=0;i<city.length;i++)
{
var opt = new Option(city[i],'');
s2.options.add(opt);
}
}
else
{
s2.style.display="none";//如果一级菜单没有二级就隐藏
}
}
}function clearCombo(cb)
{
while(cb.options.length>0)
cb.remove(0);//修改一下,上面的不兼容FF了
}
</script>
</body>
</html>
zsdata的值就是这样 '建造师':['一级临时建造师','二级注册建造师'],'专业职称证书':['技术员']var zsdata=document.getElementById('zgzsdata').value;
var data={zsdata};
var data={
'浙江省':['浙江城市一','浙江城市二','浙江城市三','浙江城市四','浙江城市五'],
'江西省':['江西城市一','江西城市二','江西城市三','江西城市四','江西城市五']//最后这里没,
};
不能这么写,那个不是字符串
var zsdata=document.getElementById('zgzsdata').value;
var data={zsdata};*///试试这样
var zsdata=document.getElementById('zgzsdata').value;
var data= (new Function( 'return {'+zsdata+'}' ))();
var data= (new Function( 'return {'+zsdata+'}' ))();